Line-space-indicating device.



0. c. POOLE. LINE SPACE INDIGATING DEVICE.

APPLIUATION FILED MAY 3, 1907.

(77 H g E J I lfi'ilemran 0 a: JE/mzzr, C iadeyChJmceBoZe v PATENTED DEC. 17, 1907.

3 SHEETS-SHEET 1.

PATENTED DEC. 17, 1907.,

0 0.. POOLE? V LINE SPACE INDIGATING DEVICE.

APPLICATION FILED MAY 3, 1907.

3 SHBETSSHEHT 2.

N'o'. 873,782. 0.0.POOLB.

LINE SPACE INDIGATING DEVICE.

APPLICATION FILED MAY 3, 1907.

s SHEETS-SHIEET a.

PATENTED DEG.17, ,1907.

urzfw v CHARLES CLARENCE POOLE, OF EVANSTON, ILLINOIS, ASSIGNOR TO Tli-EOLIVEB TYPE- WRIIER COMPANY,- OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

LINE-SPACE-INDICATING DEVICE.

.Specification of Letters Patent.

' Patented Dec. 17, 1907.

' Application filed. May 3. 1907. Serial No. 371.687.

To all whom it may concern:

Be it known that I, CHARLES CLARENCE POOLE, a citizen of the United States, and a resident of Evanston, in the county of Cook.

and State of Illinois, have invented certain new and useful Improvements in Line- Space-Indicating Devices for Type-Writers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings, and to the letters of reference ber of carbon copies of'a number of writings,

on a single record sheet, with uniform or predetermined spaces between said carbon 7 copies.

' The invention consists in the matters hereinafter described and pointed out in the appended claims.

As shown in the accompanying drawings Figure 1 is a plan view of the righthand end ofthe paper carriage of the kind of machine known as the Oliver.

carriage with. the devices embodying my invention attached thereto, the turning-knob at the right hand end of'the platenbeing omitted to more clearly show the parts. Fig. 3 is a view similar to Fi 2 showing the parts in changed position. Fig. 4 is a detail vertical section, taken on the line 44 of Fig. 2. Fig. 5 is a horizontal section, on the line 5.5 of Fig. 2. section on the line 66 of Fig. 2. Fig. 7 is a" detail horizontal section, on the line 7 -7 of Fig. 3. Fig. 8 is a view in elevation of the base-plate constituting a part of my device. Fig. 9 is a view in elevation of thegear segment constituting part of my device. Fig. 10 is a detail vertical section onthe line 10-10 of Fig. 5. Fig. 11 is a view in elevation of the stop-arm constituting a part of my device. Fig. 12 is a view in elevation of the said right hand end of the carriage with a modified form of my device attached thereto, the turning-knob at the right hand end of the platen being omitted to more clearly show the parts. Fig. 13 is a detail vertical Fig. 2 is'a view in 1 elevation of the said right hand end of the Fig. 6 is a detail verticalsection on the' line 1313 of Fig. 12. Fig.

leis ,a view in elevation of the base-plate constituting a part of said modified form of my device, detached from the machine.

Fig. 15 is a view in elevation showing a portion of the inner face of-the gear segment constituting a part'of said modified form of my device. Y As shown'in thesaid drawings (Figs. 1 t

-11, inclusive) A designates the platen or paper roller, B the right-hand end plate of the paper carriage in which the shaft a of the laten has bearing, C the upper longitudinal. ame bar of thecarriage, D one of the paper guides mounted on said frame bar, E the upper guide roller of the carriage, and F a scale strip located above the platen and adjacent to said guide roller.

. G indicates a lever at the right-hand end of the carriage by which are operated devices for moving or shifting the guide rollers toward and from the platen, 1 thereby releasing the paper, when desired, said lever having a hub g. by which itis secured to the end of a rock-shaft G which projects through the end plate B.

H designates the right-hand end turning knob of the platen shaft which is alfixed to the shaft by a short sleeve k that fits over and is attached to the endof said shaft.

The parts above described correspond with those of the paper carriage of an Oliver typewritin machine in which the typebars are locate above the platen and the types strike downwardly upon the top surface thereof. i 7

Now referring to the parts more particularly concerned in In invention, the same are constructed as ollows: I indicates a gear pinionwhich is affixed to the platen shaft outside-of the end frame plate B of the carriage. frame, and J indicates a curved rack member or gear segment mounted on the carria e frame in the same plane with the gear pinion I and adapted to intermesh therewith. As shown in the drawings, said gear segment J forms part of the rim of a gear wheel, the extremities of the gear segment being joined by a connecting part so as to give continuity to the rim of the gear wheel. The gear segment J is supported on a central pivot J by means of a single radial arm J 2 formed integral with a hub portion (Fig.9).

' sin le armfor supporting the gear segment I g by which said lever G is attachedto the shown, or otherwise. v the baselate M the entire deviceis made ena les the latter to swing through a desired dlstance or are without contact with the hub rock-shaft G. I

In one position of the parts, shown'inFig. 2, the teeth on the gear segment areout of mesh with the teeth on" the inion I. In such position a spring K, (30' ed:v about the hub of the gear segment and engaging at its ends with studs k and k fixed'respectively;

to the stationary p'art of the carrier frame and to the inner "face of said radial arm-J acts to turn said gear segment toward the right, or into a position where its teeth will intermesh with those on the inion I; In the particular construction ustrated the pivot studJ is secured to a base-plate. M to which the stud is is also fixed, said base-plate being adapted for attachment to the end plate B of the carriage frame by screws, as By employment of detachab e from the carriage "frame with the exception of the gear pinion I which may be detached from the platen shaft by taking off the turning knob.

Means are provided for maintaining the gar segment against theforce of the spring in the position shown in Fig. 2 when the platen is turned forward, or toward the right,

in order to prevent the last tooth on the gear segment from engaging successively with the teeth on the pinion. Said means comprises parts as follows: N indicates a radially movable friction shoe arranged onthe inner lateral face of the gear segment and adapted for frictional engagement with an annular bearing surface on a part attached to the pinion I or the platen shaft. Said annular bearing surface, as shown in the drawings, being formed on a lateral inward extension of the body of thepinion I, which body is made thick enough at its edge to afiord space for the pinion teeth and the said annular bearing surface. In order to insure'the frictional engagement of the friction shoe with the said bearing surface, said friction shoe is yieldmgly su ported on the gear segment, so that it is he d or vpressed outwardly by spring pressureinto position for contact with the annular bearing surface N. In the particular construction illustrated in the drawings,

said shoe is formed integral with, or fixed-to,

a spring arm n which is attached to the gear segment and serves to support the shoe on the gear segmentand also acts to press. said spring shoe radially outward. The outward-movementof'said shoe is limited by a pin n"which engages with a lug n project mg from the shoe.

- When the parts are in theposition shown in Fig. 1 and'the-platen' shaft is turned for.-

ward, or turning toward the right, the gear segment. will be turned until the. friction shoe is brought into contact with the bearing surface N. on the platen shaft, thiscccurring just before, or when the end of the gear-sag ment passes out of engagement with the pin ion, and inthe further turning of the platen shaft, the frictional en 'agement of the heare urface with the s cc wiil result in the gear segment being turned or carried around until the end ofthe ear segment is entirel free from contact wit the pinion; this being the positionjshown .Fig. 2. Afterthe action of the shoe has carried the last tooth'of the'gea'r segment out of engagement withthe teeth on the pinion, the spr ng K prevents the gear segment from rotating far enough to carry the friction shoe past and out of engagement with the roller N so that by a backward turning, or rotation toward the] left, of the platen the friction shoe Wlll 11111118 diately-act to turn the gear segment until its teeth are again brought into mesh with the teeth on the pinion.

Means are provided as the gear segment against the influence of the spring K in an inoperative position, or in a position out of engagement with the rotativeparts associated with the platen shaft.- 0 in dicates a bell cra nk lever pivoted on ahori 1 follows for locking zontal stud o and comprising a vertical arm O" and 'a'horizontal armO Said vertical arm is provided at its upper end with an ex-';

tension '0 in the form of a hook ada tedto engage with a pinv 0 extending lateral .frggm the inner face of the gear segment placing the bell-crank lever in the position shown in dottedlines in Fig. '10, the gearseg ment can be moved into and heldin a p0s1 tion where the teeth'on the se ment and on the pinion are out of mesh an likewise the friction shoe is outof engagement with the roller NF. Said bell-crank lever, when placed in either of its two positions is maintained in such position by means of a spring detent 0 fixed to the horizontal arm aid spring detcnt is bent at its free end into V-shape and is ada tedtoengage with either the up-..

sired to put the in icating device into operation, the lever O is I laced in the position shown in full lines in igl 10, when the spring K'will act to-move'the gear segment mto a position with the friction shoe N in ngagement with the bearing surface N A circumferentially adjustable stop is provided for limiting the turning movement 0 the gear segment toward the right, said stop being shown asconsisting of a pin it fixed inthe inner'fac'e of the gear wheel, and anad bent toward the base-'plate M to form-a de-i= tent or latch adapted'to en age with any one,

of a series of notches in t e concentrically curved margin of'the'base plate M. B the backward turning of the platen shaft'an -pinion the gear segment is turned to carry the top-thereof rearwardly. T he turning move-.

ment of the parts may be continued until the stud k .of the gear-segment strikes 'thestop arm L when further ba kwardtuming movement of the platen will be arrestedl By'adjusting the stop L-angularly about the ivot stud J the distance through which the p 'aten' may be turned backward may be variedjas desired. J

The plate M may, if desired, be provided with .a circularly arranged scale M arranged concentric with the pivotal axis of the-gear" .segment and marked to correspond with the line space intervals and the stop arm Lis conveniently provided with an indicating pointer Z which can be brought into re 'ster with any one of said scale divisions. en such scale is used in connection with the gear segment, the use of the adjustable stop arm Lor other stop'device may be dispensed with and the operator will then determine, by not ing the movement of the gear segment relatively to the scale, the distance through which the platen is turned backwardly;

In Figs. 12 to 15, inclusive, isshown aform of my device similar in all respects to that shown in Figs. 1 to 11, inclusive, except that the means there shown for locking the gear segment in its inoperative position are re' placed by a locking means comprising parts as follows:

P indicates a lever or locking arm arranged tangentially on the inner lateral face of the gear segment and pivoted between its ends in a manner allowing it to move in a plane perpendicular to the plane of the gear segment.

p indicates a forked lug or bracket fixed to the face of the gear segment, between the ends of which the arm P is supported by means of a pivot pin 3). Said arm P is provided at one end with an extension in the form of a hook p adapted to engage with a tooth P formed on the base-plate-M. The said ,latt-er end of the arm P is yieldingly pressed away from the face of the gearseg ment by means of a flat spring p and the end of the arm P and one face of the tooth P are beveled or inclined in such manner that when the gear segment is moved in one direction and said inclined faces are brought together the hook p will be pressed toward the face of paper:

the ear segment, and may move past the toot P 'and engage with the uninclined face fthereof. I The parts ,are so arranged that when the gear. segment is in the position shown in Fig. 12, in which position the friction shoe N is in engagement with the fric-' tion roller N the turning, by the operator,

its inner end with the "end'of'the arm P oppoof the gear segment toward the leftfarsite to' the end. on whichis'formed the hook p By pushing the pin pf inward the locking arm P is moved in a manner: to'eiiect its release from the tooth P allowing the spring K to move the gear-segment into 1ts operative position. b Y

- The general purpose of the paper movement indicating device above described is to indicate to the operator'the extent of backward turning move'mentof the platen required when inserting-sheets on which bills or invoices are to be printe d,'where itlis de- "sired to make out a'number of bills or invoices and to 'make carbon copies of the sameon a-single record strip'or long sheet of In acase of this kind it is desirable that the carbon copies should'be spaced as closely-as possible u'pon the record strip, but at uniform distances apart, or with equal and the line spaoe indicating device herein spaces between the several carbon copies,v

shown is employed to enable .the operator to readily insert a new sheet for each separate original bill or invoice in such manner that the first printed line of each carbon copy shall be located a desired vdistance from the last printed line of the preceding carbon copy. Assuming that a record strip and a sheet of paper for the original bill or invoice has been inserted into the machine, together with a carbon sheet between them, the first bill or invoice may be printed and the carbon copy will be made in the usual manner on the record strip; The printing of the bill or invoice having been completed the same will be removed from the machine by releasing the guide rollers from the platen (through the operation of the lever G or otherwise) and this'will be done without disturbing, the position of the record or carbon sheet. The platen is turned backwardly to. move the record sheet and carbon sheet backwardly to such a point that when a new invoice sheet is inserted the part of the new sheet on which the first line is to be printed will be located at such distance from the last line of the preceding carbon copy on the record sheet as to leave the desired space between thecarbon copies.

v 20 point on the scale.

In using the indicating device described,

the parts are placed in their operative position and after the first bill or invoice has been printed and removed from the machine without disturbing the record and carbon sheets, the platen shaft and'pinion I will be moved or turned backwardly or toward the left, the

gear segment bein 3' thereby engaged with the )inion I. The p atcn will then be turned ackward to the desired point for introducing the new invoice sheet, which point will be indicated by the stud k striking the stoparm L and thus arresting further backward.

movement of the gear segment and platen, Such stopping point may be determined by observatlon of the movement of the arm J alon or over the scale M and by stopping be then proceeded with without any move-- '30 ment being given to the gear se ment.

The distance through whic the platen must, in any particular instance, be turned backward before inserting an invoice sheet, varies according to the distance necessary to be left on the invoice sheet from the top of said sheet to the first printed line thereon,

7 and the distance tobe left between the copies onthe record sheet. This distance must be determined, when changing from one style of 40 invoice sheet to another, either by experiment or by noting the line space distance that the platen must be turned backward before .a new sheet is inserted, in order that the new sheet when fed forward in position for printing the first line thereon will have such relation'tothe record sheet that the said first line will be at a desired number of line space distances below the last line of the preceding carbon copy on said record sheet. The scale M will be marked, or the notches Z Z located, to correspond with the line space distances through which the platen is turned, and follows that the operator, having ascertained the number of line space dista'nces through which the .platen must be turned backward for an invoice sheet having a certain width of headin will place the sto arm into engagement wit 1 the desired notc Z in which case the backward movement of the platen will be arrested automatically at the desired point, in its backward turning movement, or if the adjustable stop be not used, the operator turns the )laten backward until the edge of the arm 2 on the gear segment, reaches the'mark on-the scale cor-- IIIBS scares Jesponding to the desired number of line spaces,v then inserts the new invoice sheet and turns the platen forward until the invoice sheet is brought into position for printingthe' first line thereon. A

S The part herein. termed a gear segment constitutes in effect a movable rack member -which', in the broader aspect of my invention may have other form than that of a gear as ment, and the broader claims hereto appen ed are designed to cover said rack member whether made of curved form, sov as to constitute part of the rim of a wheel, or not.

I claim as my invention 1. A line space indicator for typewriters comprising a gear pinion which turns withthe laten, a rack member adapted to intermesh with the gear pinion and which passes out of mesh with the gear inion in the forward turning movement 0 the platen and becomes rengaged with the pinion in the backward turning movement of the platen, and means operated by such forward turning of-the platen acting when the rack member asses out of mesh with the inion to give rther movement to said rac member in a direction to carry itsend tooth entirely out of contact with the teeth of thepinion;

2. A line space indicator for typewriters comprising a gear pinion which turns with 95 the laten, a rack member adapted to interii with the gear pinion and which has backward and forward endwise movement to carry its gear teeth into and out of mesh with the pinion, said rack member being arranged to be thrown out of intermeshing engagement with the gear inion by the forward turning movement 0 the platen, means for causing said rack member to be brought into mesh with the pinion in the backward turning movement of the platen, a pointer, and a scale associated with said pointer for indi-' cating the extent of movement of said rack member; r

3. A line space indicator for typewriters comprising a gear pinion which turns with the laten, a rack member adapted to intermes r with the gearinion and which has backward and forwar endwise movement to carry its gear teeth into and out of mesh with the pinion, said rack memberbeing arranged to be thrown out of intermeshing engagement with the gear pinion by the forward turning movement of the platen, means for causing said rack member to be brou ht into mesh with the gear pinion by the bac ward turning movement of the laten, and. an adjustable stop forlimiting the. movement of said rack member.

4:. A line space indicator for typewriters comprising a gear pinion which turns with the 1platen, a rack member adapted to intermes with said gear pinion and which passes out of mesh with the ear pinion in the forward turning of the p aten and becomes re,- 131 I engaged with the pinion in the backwardturning of the platen and means maintaining frictional engagement between said gear pinion and rack member after the disengage-' ment of said parts in the forward turning of the platen to carry the end tooth of the rack member entirely out of contact with the teeth connected with the rack member and adapttherewith, of a part whic pinion and is provided'with an annular fric-' tion surface,afriction shoe carried by the ed'for engagement with said friction surface,

7. The combination with a pinion and a movable rack member ada ted to intermesh turns with the rack member and adapted for engagement with said frietion sm'face, a d a s ring adapted to act on therack mem er ina' irec-.

' tion to carry. it into intermeshing engagement with the'pinion'. v

8. A line space indicator for typewriters comprising a gear inion which turns with the platen and a ra&-meinber adapted to in?v termesh-with said -'.gear*pinion and whic'fi' passes out of mesh with-and becomes disengaged from the pinion in the forward turning of the platen, andmeans vfor carrying-said rack member outof engagement, and effecting its rengagement with the pinion comprising an annular friction surface-on a art which turns with the gear pinion, and a iction shoe mountedv on the gear. segment and adapted to enggesaid'ffiiction' surface. i

9. A line space-indieator-for typewriters comprising a gear:-pinion::which turns with the. laten, a rack'member-[adapted to inter-' mes with th said pinion,- and means for carrying said rahk member'out of'engagement and effecting its reengagement' with the said pinion, embracing a part. whichturns with the pinion and is rovided'with anannu-lar friction surface, a ction shoe carried bythe rack member and adapted to engage said friction surface, and means acting yieldingly on the rack member in a direction, to effect its engagement with said pinion,

comprising a gear pinion which turns with the laten, a rack member adapted to intermesfi with said gear pinion, means for carrying said rack mem'ber out of engagement and efiecting its reng'a ement with the gear pinion embracing a iction shoe carried by vided with a the rack member, an annular frictionsurlace on a part which turns with the pinion, and a spring adapted to act on the rack member in a direction to effect its reengagement with the pinion.

11 A line space indicating device for typewriters embracing a pinion which turns with the platen and a movable rack. member adapted-to intermesh with said pinion and which is carried out of mesh with said pinion by the forward turning movement of the platen shaft, an annular friction surface on a part which turns with said pinion, and a friction shoe yieldingly supported. on said gear segment and adapted to engage with said friction surface.

12. A line space indicating device for typewriters embracing a gear pinion which turns with the platen, a movable rack member adapted,to intermesh with said pinion and which 1s carried out of mesh with sald pmlon by the forward turning movement of the platen shaft and becomes reengaged with said pinion in the backward turning movement of said platen shaft and means affording frictional enga ement between said gear pinion and the rac member when the latter is out of mesh with said pinion.

. 13. A line space indicating device for typewriters embracing a pinion which turns w1th the 'platen' and a movable rack member adapted to intermesh with said pinion and which is carried out of mesh with said pinion by the forward turning movement of the platen shaft, means acting to move said gear segment into mesh with the pinion in the backward turning-movement of the platen,

and means for locking said gearsegment in v writers embracing a pinion which turns w1th the platen and, a movable rack, member adapted to intermesh with said pinion and which is carried out'of mesh with said pinion b the forward turning movement of the pfaten shaft, means acting to move said gear segment into rengagement with said pinion in the backward turning movement of the platen, and means-for locking said gear segment'in a'position out of engagement with said fpinion, said latter means comprising a pin-projecting lateral1y from theface of saidgear' segment, and an arm pivoted to the stationary art. of the carriage frame and prohook adapted for engagement therewith.

, v In testimony, that I claim the foregoing as 10.- A line space indicator for typewriters my invention I aflix my signature in the presence of two witnesses, this 30th day of April A. ,D. 1907.

' OHARLES CLARENCE POOLE.

Witnesses:

' G. R. WILKINS,

S. D. HmsonL. 

